Surely if they were given the option of promoting 2 ppl they would look back and say oh yes they operated over the strike therefore they get promoted. this may be the cynic in me but do not all companies operate in this way?
Well even though they are supposed to be unbiased, I think human nature suggests that a manager looking at that situation would indeed promote the non-striker.
As for the calls, I think you took the right action in saying you are undecided rather than lie. Wilfully lying to the company could get you into hot water. If I lied to my manager, I'm pretty sure a disciplinary wouldn't be far off - pending strike action doesn't protect you from that
